#Facebook thread:
Ahead of Zuckerberg's Congress testimony, a quick revision guide.
All you need to know about Facebook (and why you should be concerned), brought to you by the Observer/Guardian's investigation into data and democracy...
Hard to believe it was less than a month ago that @carolecadwalla broke the story about GSR harvesting 50m+ Facebook profiles for @CamAnalytica to use in political campaigning:
Revealed: 50 million Facebook profiles harvested for Cambridge Analytica.. theguardian.com/news/2018/mar/…